1.

A fruit seller sells 8 oranges at cost price of 9. The profit per cent is1). \(12\frac{1}{2}\)2). \(11\frac{1}{9}\)3). \(5\frac{{15}}{{17}}\)4). \(8\frac{2}{3}\)

Answer»

Let the cost PRICE of ONE orange = c

∴ Cost price of 8 oranges = 8c

Given,

Selling price of 8 oranges = cost price of 9 oranges = 9c

PROFIT % = $(\FRAC{{selling\;price\;-\;cost\;price}}{{cost\;price}}\; \times \;100\;\% )$

⇒Profit% $(= \frac{{9c\;-\;8c}}{{8c}} \times 100\;\% )$

⇒ Profit % $(= \frac{{100}}{8}\%= 12\frac{1}{2}\;\% )$


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